"I have been taking Librax during periods of high stress when my irritable bowel syndrome would flare up since the early 1980s. I don't take it as prescribed - it's too much. I take one capsule when symptoms flare up and I usually don't need another one. 30 capsules can last me 6 months or until they expire. Librax can cause cotton mouth. I've tried Bentyl and Levsin and they don't work nearly as well on the spasms. I also get esophageal spasms and the Librax does a nice job of stopping them."